Resources  
  • Buliding Text to Speech Applications using SAPI 5.1 and C#Jan 03, 2002. In this article,The Speech application programming interface (SAPI) considerably decreases the code necessary for an application to use speech recognition and text-to-speech, making speech technology more handy and robust for broad range of applications
  • Make Your C# Application SpeakAug 30, 2013. We are going to use our one base class from .NET framework, which will show a simple demonstration of SAPI.
  • Programming Speech in WPF - Speech SynthesisOct 01, 2008. Speech Synthesis, also known as text-to-speech or SAPI, is a process of converting text to speech. This tutorial shows how to build speech-enabled applications in WPF using SAPI 3.5.